1 They are the main type of gallstones in the UK and the USA.  Pigment gallstones - these form when the bile has too much bilirubin. They are more common among patients who have liver disease, infected bile tubes or blood disorders, such as sickle-cell anemia.
DeepDream is a computer vision program created by Google which uses a convolutional neural network to find and enhance patterns in images via algorithmic pareidolia, thus creating a dream-like hallucinogenic appearance in the deliberately over-processed images.
Deep sleep is a mysterious state that we usually enter several times each night. While we are very aware today of dream sleep, and of the ability of some people to be conscious of and even direct their dreams in a state known as lucid dreaming, the nature of deep sleep continues to invite a sense of mystery.